of Latch, A loop or eye formed on the head rope of a bonnet, by which it is attached to the foot of a sail; -- called also latch and lasket.
A metal bar with a catch and a lever used to open and close doors or gates. ( Noun)
To latch: to attach oneself to another object. Example: She latched onto his arm ( Verb)
Latching Current is the minimum current needed on the gate to fire or trigger an SCR.
we know that ratio of holding current to latching current in scr is 0.4.
Stop hanging on
Latching current is the current flowing between anode to Cathode when thyristor is turned on using gate pulse. If the gate pulse is removed before the required min amount of latching current value is not reached thyristor will turn off. To keep the thyristor in on state the gate pulse duration should be so adjusted that the min latching current value is reached before it ends.
repair or adjust the latching mechanism
A latching circuit is a circuit with two stable states, which one can think of as 1 and 0, thereby being able to store one bit of information. In circuit diagrams, these are represented by cross-coupled NOR or NAND logic gates.
ford motor co. had a recall on this problem
yes
Latching relays have no default position and remain in their last position when the drive current stops.
Holding current is a kind of Imin i.e., a minimum rating current which should not be decreased less than this limit so that SCR will be off(Maximum limit).Whereas latching current is again a limit which is Imini.e., a minimum current that should be there to make it on(Minimum limit).So obviously Holding current is more than latching current.If u still have the confusion go through the link below ALi RAZA
E.g. "This form of parasitism involves latching onto the host, and drawing/ingesting its blood"
Inside the door , mounted on the back side of the latching mechanism